Door for ships&#39; bulkheads.



WHOUGHTON. DOOR FOR SHIPS BULKHBADS.

APPLICATION FILED 00T. 3, 1912.

Patented Nov. 11, 1913.

COLUMBIA PLANOGRAPH C0.,\VAsHlNu1-0N. D4 c.

WILLIAM HOUGrI-ITON, OF BATH, MAINE.

DOOR FOB SHIPS BULKHEAJDS.

T0 all whom t may concern Be it known that I, WILLIAM I-IoUGHmoN, a citizen of the `United States, residing at Bath, county of Sagadahoc, State of Maine, have invented certain new Improvements in my Invention of Doors Jfor Ships Bulkheads, speciication forming part of Letters' Patent No. 629,790, dated August 1, 1899, application iled October 17, 1898, Serial No. 693,732. p

he improvements relate to methods of construction and means for controlling the door automatically.

rlhe object of my invent-ion is to provide simpler means ci construction and to make the operation in control of door automatic, instead of having to resort to disengaging and engaging of parts for this purpose.

IlVith these objects in view I confine myself to one type of door that has the opening in the bulkhead always closed. Where it is desired that the divisional bulklieads between large compartments shall be maintained intact such a door is suitable, also as an air lock for passing from one compartment to another when the firerooms are under forced draft aboardship.

The door turns upon a vertical axis coincident with the axis of the casing. The interior face of the casing and the exterior :tace of the door may be machine-finished, that is to say, they may be turned or ground to produce the most eiiicient or accurate lit. rIhe door seats itself in its tapered socket or casing, forming a substantially watertight joint.

In the accompanying drawings Figure 1 Specification of Letters Patent.

yiipplicaton filed. October 3,

i rate part B is a vertical section, Fig. 2, a transverse section therethrough on line 2`2,Fig.l3, a similar section onv line 8 3, Fig.' 4:, a similar section on line 4 4, Fig. 5, an elevation at right angles to Fig. 1 with the lower part of casing broken away showing a side view of theV internal gearing at bottom of the door, Fig. 6, a plan view of Fig. 1, Fig. 7, a transverse' section therethrough on line 7-7, of Fig. 5, Fig. 8, a transverse section through the upper portion of the socketon the floor of the casing showing the interior of the socket, Fig. 9, a plan view of the gear wheeland pinion on line 9-'9.

'Ihe improvements in the construction of the casing and the door are as follows, and the parts pointed outto which the improvements relate.

' -In Fig. l1, X represents a portion ot a Patented Nov.11,1913.

1912. sei-iai No. 723,757.

'ships bulkhead, an opening is formed therein to which .the cylindrical door casing is applied. 'Ibe casing shown as composed of one part A, is circular in cross section.

:for attachingthe bulkhead thereto. rIhe casing tapers from the top downwardly, and at a suitable distance down from the top, and at a suitable distance up Jfrom the bottom, opposite openings are formed inthe I 6o provide raised surfaces Z on the outensids sides which constitute the passage way. At s the bottom of the part A, I provide a sepawhose circumference and end are continuous or unbroken. A iiange f, is

' formed thereonv for connecting to flange f on part A, which together form the bottom `of r the door iframe.` At the top of part'A I provide a flat circular shaped part B in onepiece, and on the underside of same IV provide a circular'ring R of a suitable Vthickness toallowroom forraising the door, and

forming a positive stop when the door is raised. Part B and `the circular ring R are joined together and are secured to flange f2 of the part A, which together form a closed cap for the top of the door frame or casing. The door C is drical body formed with closed ends,having an opening in its side. It its closely within the casing and turns upon a pivot that is formed on the upper endof the screw C2, which I vhave also combined as a ylift-ing screw 'for raising the door out of frictional contact with itsl casing to readily revolve the door with a small expenditure of power, and together with the following is substituted for the conical rolls E' and circular track F in the {ioor of the casing. On the underside of the door I provide a socket S that is internally litted with a ring E having tapering slots, forming recesses provided with rollers r.' On the floor of the door casing also I provide a similar internally fitted socket S. .Iourna'led in these two a hollow tapering cylin-v sockets is thecoinbination lifting screw C2, at

Referring to the drawings 8, I have shown rings E in the sockets having three tapering slots curved to a suitable radius, and with the screw in place recesses Fig. 4 and Fig. v

'nut should it attempt to'turnwith the screw as it naturally will,

u p in which' lcase it will be prevented, as thel rollers r `will be .throught into action Yby frictional contact with themsides .of the slots `and bodypi" nut.-

KThe' screw will then rise andvforce the door Vrollers in the upper socket upward without rotating thev door, as the S are out of acthe wide end of tion, being free and kept in or recesses by reason of the screw the Vslots C2 turning in same direction. When in rol .l f 'Y remain-fixed so tating the Vdoorthe nut N at the bottom will long as the V.weight of the dooris bearingfon same, frictional con- Y tact' with .the bottomot nut and `floor of the bottom socket when r Rollers 7" in the bottom Vplace-by a collar C3 f the screw C2. V"Ihe casing, permitting' .the screw to be turned fbacki'into its normal'posit-ion a'sfthe rollers `1 intoaction to as described for the rollers in the aising the door.

in .the upper socket are broughtV similar 'formed'on the body of pitch for the thread on the screw depends `upon the'height ofY door f willthenzhe *openingin the ca to be raised I. vThus determined the pitch twice the height, as the door in rotating'to bring the opening' opposite either sing ,requires "only hali-l a revolution, so that when the door' is rotated f afterbeing'raised will return the screw back into its normal position and the door also 40 willbe brought back into its normal position iinits seat. Y .Should the screw C2 be not raised tothe full extent allowed and as the i doorwill always require the full'half revolution, the nut and screw can be turned toimmaterial whether gether so as to adjust' the opening' in the door andrcasing .to coincide. So that'it is vthe door isv raised or partly raisedl V.The details ythus VAfar and hereinafter described vmay of course -be ya'.-

v Vt-ionherepinbefore indicated.V

, operation of -the'doorrom ried in many ways without. departing from i the principles kof construction and operaf to 'mesh with gear 'Y on the body of the screw l erating the door Y casing I arrange at a suitable place `on the i O equipped the projection P that is socket are 'kept in until the openingis VShawn for the i the outside of` as Yto'llorwspand replace` enl f The means which ,I have the casing' are tirely the means as shown in the previous drawings: Located ata suitable point in the I bulkhead YI' provide a driving shaft which :extends .through the bulkhead andV is equipped at each end with an operating wheel, also onthissa'me shaft lis mounted a that is mounted on `the vertical shaft I-I, through the medium of .which-the Vertical shaft'is rotated At the i lower end of the vertical shaft H is mounted thereon a gear wheel I adapted to mesh with a corresponding gear wheel I that is mounted on a short vertical shaft J that ex- .tends upward and through the bottom of the Gesine'. there 1s At the upper end of this J mounted apinion gearK adapted wheel K that is mounted C2. By the manipulation of the' operating wheels on either side of the bulkhead, the sore 2'may be rotated, 'which inconnection with the door as already described the door may be raised and rotated, turning lthe operating wheels infone direction for raising and in the opposite direction for rotating the door. For opfrom .wit-hin the cylindrical wall of the revolving door, a vertical shaft at the lower ,end with an operat ing wheel, and at its upper end there is mounted a pinion wheel Madaptedto mesh with a gear wheel M!` that/is mounted on secured on the underside of part B or cap .of the door frame. ByY the manipulation .of the .operating wheel the door may be rotated and only lin the one direction4 and is entirely independent from the operating gear provided for controlling the door outside of the casing.Y The door cannot be raised' by this'operating gear, and itl will be necessary always when the door has to be raised, to use thev outside operating ear. g The methodvin controlling .the operation of the door is'as' follows: Suppose a man in a compartmenuon either side of the bulkhea desires to passto the other compartment. Firsthe will turn the operating wheel YV cr `W2, Vas the case may be, to raise the door. Should rthe opening in the door be in the same compartment, he will then enter the cylindrical door, and by the useof the operating wheel W3 turn the door around brought into the other compartment. Should the opening in the door be in the opu osite compartment to where he ishe`willrst raise the door yand then turn it around,

that he can enter, and as the door will have i been lowered, caused lby turning it around,

he should 'raise it again before entering.

I claim as my improvements as follows z- A Ina 4taperingcylindrical doorcasing g and door, mechanlsm forraising the door out of frictional contact with its casing, comprising the combination 'of a liftingscrew and pivot upon which the door turns, a shoulder on the body of the saidl screwl for supporting the door when raised, a circular 4n ut on the `Hoor of thecasing, held in fricp tional contact Vto prevent revolving, and the said nut .with its screw free to revolve in one direction for adjusting the door opening, a socket mounted 0n the underside` of to bringthe opening sov the door internally fitted with a ring having tapering slots in the form of recesses, one roller in each recess so arranged that said rollers will be thrown out of rictional contact with the sides of the recess and the body of the screw by the movement of the said screw through the medium of the operating wheels on either `side of the bulkhead for raising the door, said rollers only being in action when lowering the screw and door together, for rotating the door to bring the opening in the door opposite either opening in the casing.

2. In a tapering cylindrical door casing and door, mechanism for both raising and rotating the door through the medium of the same operating wheels on either side of the bulkhead, a'socket on the underside of the door internally litted with a ring having tapering slots in the form of recesses into which rollers are positioned so arranged that said rollers will be brought into engagement by frictional contact, put into action by the movement of the screw that is iournaled in the said sockets, said rollers freed when the screw 1s revolved in the opposite direction to permit raising the door without rotating it, a socket on the loor of the casing, arranged internally similar to the socket on the underside of door, a nut on the screw in the said socket in engagement with said rollers so that the door may be raised for rotating tovbring its opening opposite either opening in the casing.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM HOUGI-ITON. Witnesses:

AUGUSTUS P. NORTON, R. D. TITCOMB.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Iatents,

Washington, D. C. 

